Tropical Storm Sara has formed in the Caribbean Sea and is forecast to continue strengthening, according to the National Hurricane Center.

Tropical Storm Sara formed Thursday in the Caribbean, and is poised to deliver "potentially catastrophic" rainfall in Honduras in particular. It's not yet clear if it will threaten the Gulf Coast, though it's possible.

Tropical Storm Sara formed Thursday afternoon in the western Caribbean and is headed toward Honduras. Forecasters advised Florida residents to keep an eye on its track.